./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/init-4-n-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-multidimensional/init-4-n-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e1c46a3eec085decec4254bf9381483b25ba7b6541d5728ae52d1793b9b8c91 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:22:26,504 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:22:26,596 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 20:22:26,602 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:22:26,602 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:22:26,638 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:22:26,638 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:22:26,639 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:22:26,640 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:22:26,640 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:22:26,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:22:26,641 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:22:26,642 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:22:26,642 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:22:26,642 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:22:26,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:22:26,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:22:26,642 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:22:26,643 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:22:26,643 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:22:26,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:22:26,644 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:22:26,644 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:22:26,644 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:22:26,644 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:22:26,644 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:22:26,644 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:22:26,644 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:22:26,645 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:22:26,645 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:22:26,645 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:22:26,645 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:22:26,646 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:22:26,646 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:22:26,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:22:26,646 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:22:26,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:22:26,646 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:22:26,646 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:22:26,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:22:26,647 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:22:26,647 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:22:26,647 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:22:26,647 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:22:26,647 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:22:26,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:22:26,647 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:22:26,647 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:22:26,647 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:22:26,648 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:22:26,648 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e1c46a3eec085decec4254bf9381483b25ba7b6541d5728ae52d1793b9b8c91 [2024-11-27 20:22:27,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:22:27,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:22:27,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:22:27,058 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:22:27,059 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:22:27,060 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/array-multidimensional/init-4-n-u.c [2024-11-27 20:22:30,178 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/data/4a4e64b8a/044337c7e9b94627b2c2cc095a85bc9e/FLAG4d1cbdf8b [2024-11-27 20:22:30,534 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:22:30,535 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/sv-benchmarks/c/array-multidimensional/init-4-n-u.c [2024-11-27 20:22:30,542 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/data/4a4e64b8a/044337c7e9b94627b2c2cc095a85bc9e/FLAG4d1cbdf8b [2024-11-27 20:22:30,564 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/data/4a4e64b8a/044337c7e9b94627b2c2cc095a85bc9e [2024-11-27 20:22:30,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:22:30,572 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:22:30,575 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:22:30,576 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:22:30,581 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:22:30,582 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:22:30" (1/1) ... [2024-11-27 20:22:30,583 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4f361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:30, skipping insertion in model container [2024-11-27 20:22:30,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:22:30" (1/1) ... [2024-11-27 20:22:30,603 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:22:30,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:22:30,832 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:22:30,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:22:30,890 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:22:30,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:30 WrapperNode [2024-11-27 20:22:30,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:22:30,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:22:30,892 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:22:30,892 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:22:30,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:30" (1/1) ... [2024-11-27 20:22:30,914 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:30" (1/1) ... [2024-11-27 20:22:30,943 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2024-11-27 20:22:30,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:22:30,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:22:30,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:22:30,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:22:30,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:30" (1/1) ... [2024-11-27 20:22:30,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:30" (1/1) ... [2024-11-27 20:22:30,965 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:30" (1/1) ... [2024-11-27 20:22:30,983 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-27 20:22:30,983 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:30" (1/1) ... [2024-11-27 20:22:30,984 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:30" (1/1) ... [2024-11-27 20:22:30,989 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:30" (1/1) ... [2024-11-27 20:22:30,990 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:30" (1/1) ... [2024-11-27 20:22:31,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:30" (1/1) ... [2024-11-27 20:22:31,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:30" (1/1) ... [2024-11-27 20:22:31,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:30" (1/1) ... [2024-11-27 20:22:31,009 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:22:31,013 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:22:31,013 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:22:31,014 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:22:31,015 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:30" (1/1) ... [2024-11-27 20:22:31,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:22:31,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:31,059 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:22:31,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:22:31,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:22:31,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:22:31,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:22:31,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 20:22:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 20:22:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 20:22:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:22:31,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:22:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 20:22:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 20:22:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:22:31,194 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:22:31,197 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:22:31,466 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-11-27 20:22:31,467 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:22:31,478 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:22:31,478 INFO L312 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-27 20:22:31,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:22:31 BoogieIcfgContainer [2024-11-27 20:22:31,478 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:22:31,481 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:22:31,481 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:22:31,486 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:22:31,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:22:30" (1/3) ... [2024-11-27 20:22:31,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496295b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:22:31, skipping insertion in model container [2024-11-27 20:22:31,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:22:30" (2/3) ... [2024-11-27 20:22:31,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496295b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:22:31, skipping insertion in model container [2024-11-27 20:22:31,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:22:31" (3/3) ... [2024-11-27 20:22:31,488 INFO L128 eAbstractionObserver]: Analyzing ICFG init-4-n-u.c [2024-11-27 20:22:31,503 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:22:31,505 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG init-4-n-u.c that has 1 procedures, 59 locations, 1 initial locations, 8 loop locations, and 16 error locations. [2024-11-27 20:22:31,560 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:22:31,572 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2bf0820b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:22:31,572 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-27 20:22:31,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 42 states have (on average 1.7857142857142858) internal successors, (75), 58 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:31,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-27 20:22:31,584 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:31,584 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-27 20:22:31,585 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:22:31,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:31,590 INFO L85 PathProgramCache]: Analyzing trace with hash 889601267, now seen corresponding path program 1 times [2024-11-27 20:22:31,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:31,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851785041] [2024-11-27 20:22:31,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:31,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:31,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:22:31,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:31,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851785041] [2024-11-27 20:22:31,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851785041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:22:31,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:22:31,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:22:31,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741735131] [2024-11-27 20:22:31,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:22:31,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:22:31,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:31,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:22:31,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:22:31,940 INFO L87 Difference]: Start difference. First operand has 59 states, 42 states have (on average 1.7857142857142858) internal successors, (75), 58 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:32,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:32,100 INFO L93 Difference]: Finished difference Result 150 states and 199 transitions. [2024-11-27 20:22:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:22:32,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-27 20:22:32,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:32,116 INFO L225 Difference]: With dead ends: 150 [2024-11-27 20:22:32,116 INFO L226 Difference]: Without dead ends: 87 [2024-11-27 20:22:32,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:22:32,124 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 97 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:32,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 104 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:22:32,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-27 20:22:32,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 79. [2024-11-27 20:22:32,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 63 states have (on average 1.5555555555555556) internal successors, (98), 78 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:32,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 98 transitions. [2024-11-27 20:22:32,185 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 98 transitions. Word has length 6 [2024-11-27 20:22:32,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:32,186 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 98 transitions. [2024-11-27 20:22:32,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:32,187 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 98 transitions. [2024-11-27 20:22:32,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-27 20:22:32,188 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:32,188 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:32,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:22:32,188 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:22:32,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:32,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1757661543, now seen corresponding path program 1 times [2024-11-27 20:22:32,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:32,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238467573] [2024-11-27 20:22:32,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:32,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:32,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:22:32,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:32,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238467573] [2024-11-27 20:22:32,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238467573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:22:32,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:22:32,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:22:32,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746592582] [2024-11-27 20:22:32,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:22:32,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:22:32,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:32,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:22:32,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:22:32,372 INFO L87 Difference]: Start difference. First operand 79 states and 98 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:32,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:32,501 INFO L93 Difference]: Finished difference Result 176 states and 226 transitions. [2024-11-27 20:22:32,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:22:32,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-27 20:22:32,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:32,503 INFO L225 Difference]: With dead ends: 176 [2024-11-27 20:22:32,503 INFO L226 Difference]: Without dead ends: 99 [2024-11-27 20:22:32,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:22:32,505 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 61 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:32,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 94 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:22:32,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-27 20:22:32,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-27 20:22:32,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 83 states have (on average 1.4216867469879517) internal successors, (118), 98 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:32,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 118 transitions. [2024-11-27 20:22:32,527 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 118 transitions. Word has length 10 [2024-11-27 20:22:32,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:32,527 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 118 transitions. [2024-11-27 20:22:32,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:32,528 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 118 transitions. [2024-11-27 20:22:32,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-27 20:22:32,528 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:32,528 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:32,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:22:32,529 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:22:32,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:32,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1349706977, now seen corresponding path program 1 times [2024-11-27 20:22:32,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:32,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283473423] [2024-11-27 20:22:32,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:32,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:32,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:22:32,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:32,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283473423] [2024-11-27 20:22:32,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283473423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:22:32,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:22:32,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:22:32,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250584744] [2024-11-27 20:22:32,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:22:32,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:22:32,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:32,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:22:32,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:22:32,704 INFO L87 Difference]: Start difference. First operand 99 states and 118 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:32,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:32,809 INFO L93 Difference]: Finished difference Result 256 states and 314 transitions. [2024-11-27 20:22:32,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:22:32,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-27 20:22:32,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:32,812 INFO L225 Difference]: With dead ends: 256 [2024-11-27 20:22:32,812 INFO L226 Difference]: Without dead ends: 159 [2024-11-27 20:22:32,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:22:32,814 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 100 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:32,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 93 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:22:32,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-27 20:22:32,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 155. [2024-11-27 20:22:32,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 139 states have (on average 1.3381294964028776) internal successors, (186), 154 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:32,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 186 transitions. [2024-11-27 20:22:32,851 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 186 transitions. Word has length 11 [2024-11-27 20:22:32,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:32,852 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 186 transitions. [2024-11-27 20:22:32,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:32,852 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 186 transitions. [2024-11-27 20:22:32,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 20:22:32,852 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:32,852 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:32,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:22:32,853 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:22:32,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:32,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1142508722, now seen corresponding path program 1 times [2024-11-27 20:22:32,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:32,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003439297] [2024-11-27 20:22:32,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:32,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:33,004 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:22:33,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:33,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003439297] [2024-11-27 20:22:33,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003439297] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:22:33,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55245562] [2024-11-27 20:22:33,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:33,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:33,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:33,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:22:33,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:22:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:33,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:22:33,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:22:33,174 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:22:33,174 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:22:33,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55245562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:22:33,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:22:33,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-27 20:22:33,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956085054] [2024-11-27 20:22:33,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:22:33,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:22:33,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:33,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:22:33,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:22:33,176 INFO L87 Difference]: Start difference. First operand 155 states and 186 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:33,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:33,281 INFO L93 Difference]: Finished difference Result 155 states and 186 transitions. [2024-11-27 20:22:33,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:22:33,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-27 20:22:33,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:33,285 INFO L225 Difference]: With dead ends: 155 [2024-11-27 20:22:33,285 INFO L226 Difference]: Without dead ends: 153 [2024-11-27 20:22:33,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:22:33,289 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 11 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:33,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 92 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:22:33,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-27 20:22:33,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2024-11-27 20:22:33,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 139 states have (on average 1.2805755395683454) internal successors, (178), 152 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:33,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 178 transitions. [2024-11-27 20:22:33,328 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 178 transitions. Word has length 15 [2024-11-27 20:22:33,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:33,328 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 178 transitions. [2024-11-27 20:22:33,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:33,328 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 178 transitions. [2024-11-27 20:22:33,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-27 20:22:33,329 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:33,329 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:33,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 20:22:33,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:33,532 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:22:33,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:33,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1058032090, now seen corresponding path program 1 times [2024-11-27 20:22:33,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:33,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025165573] [2024-11-27 20:22:33,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:33,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:33,635 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:22:33,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:33,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025165573] [2024-11-27 20:22:33,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025165573] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:22:33,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335373909] [2024-11-27 20:22:33,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:33,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:33,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:33,640 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:22:33,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:22:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:33,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:22:33,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:22:33,734 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:22:33,734 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:22:33,778 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:22:33,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335373909] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:22:33,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:22:33,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-27 20:22:33,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307552621] [2024-11-27 20:22:33,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:22:33,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:22:33,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:33,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:22:33,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:22:33,780 INFO L87 Difference]: Start difference. First operand 153 states and 178 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:33,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:33,927 INFO L93 Difference]: Finished difference Result 275 states and 346 transitions. [2024-11-27 20:22:33,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:22:33,929 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-27 20:22:33,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:33,931 INFO L225 Difference]: With dead ends: 275 [2024-11-27 20:22:33,931 INFO L226 Difference]: Without dead ends: 273 [2024-11-27 20:22:33,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:22:33,932 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 25 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:33,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 184 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:22:33,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-27 20:22:33,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2024-11-27 20:22:33,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 259 states have (on average 1.2432432432432432) internal successors, (322), 272 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:33,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 322 transitions. [2024-11-27 20:22:33,965 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 322 transitions. Word has length 16 [2024-11-27 20:22:33,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:33,965 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 322 transitions. [2024-11-27 20:22:33,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:33,965 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 322 transitions. [2024-11-27 20:22:33,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-27 20:22:33,966 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:33,966 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:33,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:22:34,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:34,167 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:22:34,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:34,167 INFO L85 PathProgramCache]: Analyzing trace with hash 37861975, now seen corresponding path program 1 times [2024-11-27 20:22:34,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:34,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124015082] [2024-11-27 20:22:34,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:34,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:34,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:22:34,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:34,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124015082] [2024-11-27 20:22:34,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124015082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:22:34,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:22:34,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:22:34,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086581100] [2024-11-27 20:22:34,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:22:34,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:22:34,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:34,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:22:34,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:22:34,222 INFO L87 Difference]: Start difference. First operand 273 states and 322 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:34,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:34,324 INFO L93 Difference]: Finished difference Result 543 states and 641 transitions. [2024-11-27 20:22:34,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:22:34,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-27 20:22:34,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:34,327 INFO L225 Difference]: With dead ends: 543 [2024-11-27 20:22:34,327 INFO L226 Difference]: Without dead ends: 539 [2024-11-27 20:22:34,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:22:34,332 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 31 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:34,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 92 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:22:34,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-11-27 20:22:34,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 529. [2024-11-27 20:22:34,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 515 states have (on average 1.2368932038834952) internal successors, (637), 528 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:34,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 637 transitions. [2024-11-27 20:22:34,409 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 637 transitions. Word has length 20 [2024-11-27 20:22:34,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:34,409 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 637 transitions. [2024-11-27 20:22:34,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:34,410 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 637 transitions. [2024-11-27 20:22:34,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-27 20:22:34,412 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:34,412 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:34,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:22:34,413 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:22:34,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:34,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1263678889, now seen corresponding path program 1 times [2024-11-27 20:22:34,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:34,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367688827] [2024-11-27 20:22:34,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:34,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:34,557 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:22:34,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:34,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367688827] [2024-11-27 20:22:34,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367688827] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:22:34,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409725249] [2024-11-27 20:22:34,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:34,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:34,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:34,560 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:22:34,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:22:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:34,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:22:34,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:22:34,727 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:22:34,727 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:22:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:22:34,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409725249] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:22:34,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:22:34,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 10 [2024-11-27 20:22:34,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730514953] [2024-11-27 20:22:34,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:22:34,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:22:34,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:34,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:22:34,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:22:34,808 INFO L87 Difference]: Start difference. First operand 529 states and 637 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:35,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:35,260 INFO L93 Difference]: Finished difference Result 1030 states and 1240 transitions. [2024-11-27 20:22:35,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:22:35,261 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-27 20:22:35,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:35,264 INFO L225 Difference]: With dead ends: 1030 [2024-11-27 20:22:35,264 INFO L226 Difference]: Without dead ends: 529 [2024-11-27 20:22:35,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:22:35,268 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 229 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:35,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 174 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:22:35,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2024-11-27 20:22:35,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 527. [2024-11-27 20:22:35,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 515 states have (on average 1.1281553398058253) internal successors, (581), 526 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:35,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 581 transitions. [2024-11-27 20:22:35,341 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 581 transitions. Word has length 23 [2024-11-27 20:22:35,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:35,341 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 581 transitions. [2024-11-27 20:22:35,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:35,342 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 581 transitions. [2024-11-27 20:22:35,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-27 20:22:35,342 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:35,342 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:35,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:22:35,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-27 20:22:35,543 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:22:35,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:35,544 INFO L85 PathProgramCache]: Analyzing trace with hash 666000428, now seen corresponding path program 2 times [2024-11-27 20:22:35,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:35,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305230883] [2024-11-27 20:22:35,545 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:22:35,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:35,573 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:22:35,574 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:22:35,637 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 20:22:35,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:35,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305230883] [2024-11-27 20:22:35,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305230883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:22:35,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480320536] [2024-11-27 20:22:35,642 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:22:35,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:35,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:35,644 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:22:35,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:22:35,718 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:22:35,718 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:22:35,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:22:35,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:22:35,801 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 20:22:35,803 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:22:35,890 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 20:22:35,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480320536] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:22:35,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:22:35,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-27 20:22:35,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889298620] [2024-11-27 20:22:35,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:22:35,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:22:35,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:35,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:22:35,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:22:35,895 INFO L87 Difference]: Start difference. First operand 527 states and 581 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:35,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:35,989 INFO L93 Difference]: Finished difference Result 527 states and 581 transitions. [2024-11-27 20:22:35,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:22:35,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-27 20:22:35,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:35,992 INFO L225 Difference]: With dead ends: 527 [2024-11-27 20:22:35,993 INFO L226 Difference]: Without dead ends: 525 [2024-11-27 20:22:35,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:22:35,994 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 91 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:35,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 125 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:22:35,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-11-27 20:22:36,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 461. [2024-11-27 20:22:36,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 451 states have (on average 1.1108647450110865) internal successors, (501), 460 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:36,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 501 transitions. [2024-11-27 20:22:36,036 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 501 transitions. Word has length 28 [2024-11-27 20:22:36,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:36,037 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 501 transitions. [2024-11-27 20:22:36,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:36,037 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 501 transitions. [2024-11-27 20:22:36,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-27 20:22:36,038 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:36,039 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:36,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 20:22:36,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:36,243 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:22:36,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:36,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1415024522, now seen corresponding path program 1 times [2024-11-27 20:22:36,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:36,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517426464] [2024-11-27 20:22:36,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:36,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:36,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:36,372 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-27 20:22:36,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:36,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517426464] [2024-11-27 20:22:36,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517426464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:22:36,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270371916] [2024-11-27 20:22:36,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:36,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:36,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:36,376 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:22:36,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:22:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:36,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:22:36,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:22:36,689 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 75 proven. 28 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 20:22:36,689 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:22:36,845 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 75 proven. 28 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-27 20:22:36,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270371916] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:22:36,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:22:36,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 8, 8] total 16 [2024-11-27 20:22:36,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564180187] [2024-11-27 20:22:36,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:22:36,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:22:36,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:36,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:22:36,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:22:36,848 INFO L87 Difference]: Start difference. First operand 461 states and 501 transitions. Second operand has 16 states, 16 states have (on average 5.125) internal successors, (82), 16 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:37,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:37,990 INFO L93 Difference]: Finished difference Result 1817 states and 2063 transitions. [2024-11-27 20:22:37,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-27 20:22:37,991 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.125) internal successors, (82), 16 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-27 20:22:37,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:37,999 INFO L225 Difference]: With dead ends: 1817 [2024-11-27 20:22:37,999 INFO L226 Difference]: Without dead ends: 1381 [2024-11-27 20:22:38,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=643, Invalid=1163, Unknown=0, NotChecked=0, Total=1806 [2024-11-27 20:22:38,003 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 784 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:38,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 182 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:22:38,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2024-11-27 20:22:38,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1381. [2024-11-27 20:22:38,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1381 states, 1371 states have (on average 1.048140043763676) internal successors, (1437), 1380 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:38,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 1437 transitions. [2024-11-27 20:22:38,150 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 1437 transitions. Word has length 48 [2024-11-27 20:22:38,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:38,151 INFO L471 AbstractCegarLoop]: Abstraction has 1381 states and 1437 transitions. [2024-11-27 20:22:38,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.125) internal successors, (82), 16 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:38,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 1437 transitions. [2024-11-27 20:22:38,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-27 20:22:38,160 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:38,160 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:38,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:22:38,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-27 20:22:38,361 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:22:38,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:38,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1966833376, now seen corresponding path program 1 times [2024-11-27 20:22:38,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:38,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403535222] [2024-11-27 20:22:38,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:38,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:38,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:38,629 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 431 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2024-11-27 20:22:38,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:38,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403535222] [2024-11-27 20:22:38,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403535222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:22:38,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160248848] [2024-11-27 20:22:38,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:38,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:38,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:38,632 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:22:38,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:22:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:38,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:22:38,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:22:39,232 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 427 proven. 190 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-27 20:22:39,232 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:22:39,660 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 427 proven. 190 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-27 20:22:39,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160248848] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:22:39,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:22:39,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 14, 14] total 28 [2024-11-27 20:22:39,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64111838] [2024-11-27 20:22:39,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:22:39,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-27 20:22:39,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:39,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-27 20:22:39,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=449, Unknown=0, NotChecked=0, Total=756 [2024-11-27 20:22:39,664 INFO L87 Difference]: Start difference. First operand 1381 states and 1437 transitions. Second operand has 28 states, 28 states have (on average 5.071428571428571) internal successors, (142), 28 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:41,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:41,777 INFO L93 Difference]: Finished difference Result 4153 states and 4551 transitions. [2024-11-27 20:22:41,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-27 20:22:41,777 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 5.071428571428571) internal successors, (142), 28 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-27 20:22:41,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:41,789 INFO L225 Difference]: With dead ends: 4153 [2024-11-27 20:22:41,789 INFO L226 Difference]: Without dead ends: 2821 [2024-11-27 20:22:41,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1254 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1549, Invalid=3853, Unknown=0, NotChecked=0, Total=5402 [2024-11-27 20:22:41,802 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 1149 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:41,803 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 350 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:22:41,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2821 states. [2024-11-27 20:22:41,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2821 to 2819. [2024-11-27 20:22:41,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2811 states have (on average 1.0220562077552473) internal successors, (2873), 2818 states have internal predecessors, (2873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:41,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 2873 transitions. [2024-11-27 20:22:41,991 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 2873 transitions. Word has length 103 [2024-11-27 20:22:41,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:41,992 INFO L471 AbstractCegarLoop]: Abstraction has 2819 states and 2873 transitions. [2024-11-27 20:22:41,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.071428571428571) internal successors, (142), 28 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:41,993 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 2873 transitions. [2024-11-27 20:22:41,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-27 20:22:41,998 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:41,999 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-27 20:22:42,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 20:22:42,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-27 20:22:42,200 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:22:42,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:42,200 INFO L85 PathProgramCache]: Analyzing trace with hash 559503306, now seen corresponding path program 1 times [2024-11-27 20:22:42,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:42,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419160309] [2024-11-27 20:22:42,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:42,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:42,637 INFO L134 CoverageAnalysis]: Checked inductivity of 3886 backedges. 0 proven. 1992 refuted. 0 times theorem prover too weak. 1894 trivial. 0 not checked. [2024-11-27 20:22:42,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:42,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419160309] [2024-11-27 20:22:42,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419160309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:22:42,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543840849] [2024-11-27 20:22:42,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:42,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:42,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:42,640 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:22:42,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:22:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:42,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-27 20:22:42,829 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:22:43,661 INFO L134 CoverageAnalysis]: Checked inductivity of 3886 backedges. 1987 proven. 946 refuted. 0 times theorem prover too weak. 953 trivial. 0 not checked. [2024-11-27 20:22:43,661 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:22:44,642 INFO L134 CoverageAnalysis]: Checked inductivity of 3886 backedges. 1987 proven. 946 refuted. 0 times theorem prover too weak. 953 trivial. 0 not checked. [2024-11-27 20:22:44,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543840849] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:22:44,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:22:44,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 26, 26] total 52 [2024-11-27 20:22:44,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640276554] [2024-11-27 20:22:44,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:22:44,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-27 20:22:44,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:44,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-27 20:22:44,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1184, Invalid=1468, Unknown=0, NotChecked=0, Total=2652 [2024-11-27 20:22:44,647 INFO L87 Difference]: Start difference. First operand 2819 states and 2873 transitions. Second operand has 52 states, 52 states have (on average 4.596153846153846) internal successors, (239), 52 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:51,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:22:51,700 INFO L93 Difference]: Finished difference Result 11261 states and 12259 transitions. [2024-11-27 20:22:51,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2024-11-27 20:22:51,701 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 4.596153846153846) internal successors, (239), 52 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 200 [2024-11-27 20:22:51,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:22:51,729 INFO L225 Difference]: With dead ends: 11261 [2024-11-27 20:22:51,730 INFO L226 Difference]: Without dead ends: 8539 [2024-11-27 20:22:51,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9180 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=9913, Invalid=18479, Unknown=0, NotChecked=0, Total=28392 [2024-11-27 20:22:51,741 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 4947 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4947 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:22:51,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4947 Valid, 314 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:22:51,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8539 states. [2024-11-27 20:22:52,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8539 to 8535. [2024-11-27 20:22:52,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8535 states, 8527 states have (on average 1.0105547085727689) internal successors, (8617), 8534 states have internal predecessors, (8617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:52,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8535 states to 8535 states and 8617 transitions. [2024-11-27 20:22:52,198 INFO L78 Accepts]: Start accepts. Automaton has 8535 states and 8617 transitions. Word has length 200 [2024-11-27 20:22:52,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:22:52,200 INFO L471 AbstractCegarLoop]: Abstraction has 8535 states and 8617 transitions. [2024-11-27 20:22:52,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 4.596153846153846) internal successors, (239), 52 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:22:52,200 INFO L276 IsEmpty]: Start isEmpty. Operand 8535 states and 8617 transitions. [2024-11-27 20:22:52,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-11-27 20:22:52,215 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:22:52,215 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 92, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 20:22:52,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 20:22:52,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 20:22:52,420 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:22:52,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:22:52,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1369147969, now seen corresponding path program 1 times [2024-11-27 20:22:52,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:22:52,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116656563] [2024-11-27 20:22:52,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:52,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:22:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:53,148 INFO L134 CoverageAnalysis]: Checked inductivity of 16950 backedges. 0 proven. 8574 refuted. 0 times theorem prover too weak. 8376 trivial. 0 not checked. [2024-11-27 20:22:53,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:22:53,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116656563] [2024-11-27 20:22:53,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116656563] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:22:53,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408279762] [2024-11-27 20:22:53,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:22:53,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:22:53,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:22:53,151 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:22:53,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:22:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:22:53,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-27 20:22:53,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:22:55,830 INFO L134 CoverageAnalysis]: Checked inductivity of 16950 backedges. 8567 proven. 4186 refuted. 0 times theorem prover too weak. 4197 trivial. 0 not checked. [2024-11-27 20:22:55,831 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:22:58,595 INFO L134 CoverageAnalysis]: Checked inductivity of 16950 backedges. 8567 proven. 4186 refuted. 0 times theorem prover too weak. 4197 trivial. 0 not checked. [2024-11-27 20:22:58,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408279762] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:22:58,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:22:58,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 50, 50] total 100 [2024-11-27 20:22:58,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64366519] [2024-11-27 20:22:58,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:22:58,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2024-11-27 20:22:58,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:22:58,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2024-11-27 20:22:58,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4663, Invalid=5237, Unknown=0, NotChecked=0, Total=9900 [2024-11-27 20:22:58,603 INFO L87 Difference]: Start difference. First operand 8535 states and 8617 transitions. Second operand has 100 states, 100 states have (on average 4.43) internal successors, (443), 100 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:15,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:15,963 INFO L93 Difference]: Finished difference Result 25519 states and 27407 transitions. [2024-11-27 20:23:15,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2024-11-27 20:23:15,965 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 4.43) internal successors, (443), 100 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 399 [2024-11-27 20:23:15,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:16,020 INFO L225 Difference]: With dead ends: 25519 [2024-11-27 20:23:16,020 INFO L226 Difference]: Without dead ends: 17177 [2024-11-27 20:23:16,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 989 GetRequests, 701 SyntacticMatches, 0 SemanticMatches, 288 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22278 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=23473, Invalid=60337, Unknown=0, NotChecked=0, Total=83810 [2024-11-27 20:23:16,043 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 6981 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 1675 mSolverCounterSat, 843 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6981 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 2518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 843 IncrementalHoareTripleChecker+Valid, 1675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:16,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6981 Valid, 740 Invalid, 2518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [843 Valid, 1675 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-27 20:23:16,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17177 states. [2024-11-27 20:23:17,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17177 to 17173. [2024-11-27 20:23:17,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17173 states, 17167 states have (on average 1.0051261140560377) internal successors, (17255), 17172 states have internal predecessors, (17255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:17,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17173 states to 17173 states and 17255 transitions. [2024-11-27 20:23:17,220 INFO L78 Accepts]: Start accepts. Automaton has 17173 states and 17255 transitions. Word has length 399 [2024-11-27 20:23:17,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:17,221 INFO L471 AbstractCegarLoop]: Abstraction has 17173 states and 17255 transitions. [2024-11-27 20:23:17,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 4.43) internal successors, (443), 100 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:17,223 INFO L276 IsEmpty]: Start isEmpty. Operand 17173 states and 17255 transitions. [2024-11-27 20:23:17,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 785 [2024-11-27 20:23:17,249 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:17,249 INFO L218 NwaCegarLoop]: trace histogram [188, 188, 188, 188, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-27 20:23:17,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 20:23:17,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-27 20:23:17,453 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:23:17,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:17,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1238382210, now seen corresponding path program 1 times [2024-11-27 20:23:17,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:17,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624941820] [2024-11-27 20:23:17,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:17,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:18,905 INFO L134 CoverageAnalysis]: Checked inductivity of 70711 backedges. 0 proven. 35551 refuted. 0 times theorem prover too weak. 35160 trivial. 0 not checked. [2024-11-27 20:23:18,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:18,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624941820] [2024-11-27 20:23:18,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624941820] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:23:18,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859326590] [2024-11-27 20:23:18,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:18,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:18,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:18,909 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:23:18,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:23:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:19,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 97 conjuncts are in the unsatisfiable core [2024-11-27 20:23:19,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:23:25,615 INFO L134 CoverageAnalysis]: Checked inductivity of 70711 backedges. 35543 proven. 17578 refuted. 0 times theorem prover too weak. 17590 trivial. 0 not checked. [2024-11-27 20:23:25,615 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:23:35,533 INFO L134 CoverageAnalysis]: Checked inductivity of 70711 backedges. 35543 proven. 17578 refuted. 0 times theorem prover too weak. 17590 trivial. 0 not checked. [2024-11-27 20:23:35,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859326590] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:23:35,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:23:35,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 98, 98] total 196 [2024-11-27 20:23:35,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116785553] [2024-11-27 20:23:35,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:23:35,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 196 states [2024-11-27 20:23:35,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:35,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2024-11-27 20:23:35,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18536, Invalid=19684, Unknown=0, NotChecked=0, Total=38220 [2024-11-27 20:23:35,548 INFO L87 Difference]: Start difference. First operand 17173 states and 17255 transitions. Second operand has 196 states, 196 states have (on average 4.224489795918367) internal successors, (828), 196 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:27:35,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:27:35,272 INFO L93 Difference]: Finished difference Result 68471 states and 73854 transitions. [2024-11-27 20:27:35,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 575 states. [2024-11-27 20:27:35,274 INFO L78 Accepts]: Start accepts. Automaton has has 196 states, 196 states have (on average 4.224489795918367) internal successors, (828), 196 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 784 [2024-11-27 20:27:35,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:27:35,425 INFO L225 Difference]: With dead ends: 68471 [2024-11-27 20:27:35,425 INFO L226 Difference]: Without dead ends: 51683 [2024-11-27 20:27:35,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2046 GetRequests, 1375 SyntacticMatches, 0 SemanticMatches, 671 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154188 ImplicationChecksByTransitivity, 78.2s TimeCoverageRelationStatistics Valid=157153, Invalid=295103, Unknown=0, NotChecked=0, Total=452256 [2024-11-27 20:27:35,485 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 22061 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 3051 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22061 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 4670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3051 IncrementalHoareTripleChecker+Valid, 1619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:27:35,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22061 Valid, 610 Invalid, 4670 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3051 Valid, 1619 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-27 20:27:35,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51683 states. [2024-11-27 20:27:37,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51683 to 51675. [2024-11-27 20:27:37,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51675 states, 51669 states have (on average 1.0025353693704155) internal successors, (51800), 51674 states have internal predecessors, (51800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:27:37,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51675 states to 51675 states and 51800 transitions. [2024-11-27 20:27:37,446 INFO L78 Accepts]: Start accepts. Automaton has 51675 states and 51800 transitions. Word has length 784 [2024-11-27 20:27:37,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:27:37,447 INFO L471 AbstractCegarLoop]: Abstraction has 51675 states and 51800 transitions. [2024-11-27 20:27:37,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 196 states, 196 states have (on average 4.224489795918367) internal successors, (828), 196 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:27:37,447 INFO L276 IsEmpty]: Start isEmpty. Operand 51675 states and 51800 transitions. [2024-11-27 20:27:37,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2302 [2024-11-27 20:27:37,698 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:27:37,699 INFO L218 NwaCegarLoop]: trace histogram [570, 570, 570, 570, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:27:37,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 20:27:37,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:27:37,900 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:27:37,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:27:37,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1644298982, now seen corresponding path program 2 times [2024-11-27 20:27:37,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:27:37,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068225737] [2024-11-27 20:27:37,901 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:27:37,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:27:38,169 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:27:38,169 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:27:38,220 INFO L134 CoverageAnalysis]: Checked inductivity of 650385 backedges. 0 proven. 289568 refuted. 0 times theorem prover too weak. 360817 trivial. 0 not checked. [2024-11-27 20:27:38,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:27:38,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068225737] [2024-11-27 20:27:38,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068225737] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:27:38,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696074991] [2024-11-27 20:27:38,221 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:27:38,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:27:38,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:27:38,224 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:27:38,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:27:38,799 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:27:38,799 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:27:38,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:27:38,845 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:27:42,034 INFO L134 CoverageAnalysis]: Checked inductivity of 650385 backedges. 0 proven. 289568 refuted. 0 times theorem prover too weak. 360817 trivial. 0 not checked. [2024-11-27 20:27:42,034 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:27:45,766 INFO L134 CoverageAnalysis]: Checked inductivity of 650385 backedges. 0 proven. 289568 refuted. 0 times theorem prover too weak. 360817 trivial. 0 not checked. [2024-11-27 20:27:45,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696074991] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:27:45,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:27:45,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-27 20:27:45,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184735574] [2024-11-27 20:27:45,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:27:45,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:27:45,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:27:45,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:27:45,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:27:45,771 INFO L87 Difference]: Start difference. First operand 51675 states and 51800 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:27:47,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:27:47,214 INFO L93 Difference]: Finished difference Result 51675 states and 51800 transitions. [2024-11-27 20:27:47,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:27:47,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2301 [2024-11-27 20:27:47,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:27:47,322 INFO L225 Difference]: With dead ends: 51675 [2024-11-27 20:27:47,323 INFO L226 Difference]: Without dead ends: 51673 [2024-11-27 20:27:47,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4605 GetRequests, 4599 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:27:47,335 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 78 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:27:47,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 87 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:27:47,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51673 states. [2024-11-27 20:27:48,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51673 to 17311. [2024-11-27 20:27:48,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17311 states, 17307 states have (on average 1.0034090252498988) internal successors, (17366), 17310 states have internal predecessors, (17366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:27:48,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17311 states to 17311 states and 17366 transitions. [2024-11-27 20:27:48,534 INFO L78 Accepts]: Start accepts. Automaton has 17311 states and 17366 transitions. Word has length 2301 [2024-11-27 20:27:48,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:27:48,539 INFO L471 AbstractCegarLoop]: Abstraction has 17311 states and 17366 transitions. [2024-11-27 20:27:48,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:27:48,540 INFO L276 IsEmpty]: Start isEmpty. Operand 17311 states and 17366 transitions. [2024-11-27 20:27:48,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2315 [2024-11-27 20:27:48,598 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:27:48,599 INFO L218 NwaCegarLoop]: trace histogram [570, 570, 570, 570, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-27 20:27:48,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 20:27:48,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-27 20:27:48,800 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:27:48,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:27:48,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1829156676, now seen corresponding path program 2 times [2024-11-27 20:27:48,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:27:48,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989929587] [2024-11-27 20:27:48,802 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:27:48,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:27:49,114 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:27:49,115 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:27:49,175 INFO L134 CoverageAnalysis]: Checked inductivity of 650409 backedges. 0 proven. 289582 refuted. 0 times theorem prover too weak. 360827 trivial. 0 not checked. [2024-11-27 20:27:49,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:27:49,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989929587] [2024-11-27 20:27:49,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989929587] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:27:49,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706087653] [2024-11-27 20:27:49,176 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:27:49,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:27:49,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:27:49,179 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:27:49,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 20:27:50,046 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:27:50,046 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:27:50,049 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:27:50,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:27:53,360 INFO L134 CoverageAnalysis]: Checked inductivity of 650409 backedges. 0 proven. 289582 refuted. 0 times theorem prover too weak. 360827 trivial. 0 not checked. [2024-11-27 20:27:53,360 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:27:56,754 INFO L134 CoverageAnalysis]: Checked inductivity of 650409 backedges. 0 proven. 289582 refuted. 0 times theorem prover too weak. 360827 trivial. 0 not checked. [2024-11-27 20:27:56,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706087653] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:27:56,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:27:56,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-27 20:27:56,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477289303] [2024-11-27 20:27:56,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:27:56,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:27:56,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:27:56,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:27:56,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:27:56,757 INFO L87 Difference]: Start difference. First operand 17311 states and 17366 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:27:57,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:27:57,856 INFO L93 Difference]: Finished difference Result 17311 states and 17366 transitions. [2024-11-27 20:27:57,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:27:57,856 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2314 [2024-11-27 20:27:57,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:27:57,904 INFO L225 Difference]: With dead ends: 17311 [2024-11-27 20:27:57,904 INFO L226 Difference]: Without dead ends: 17309 [2024-11-27 20:27:57,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4631 GetRequests, 4625 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:27:57,911 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 44 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:27:57,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 62 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:27:57,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17309 states. [2024-11-27 20:27:58,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17309 to 5795. [2024-11-27 20:27:58,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5795 states, 5793 states have (on average 1.003970308993613) internal successors, (5816), 5794 states have internal predecessors, (5816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:27:58,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5795 states to 5795 states and 5816 transitions. [2024-11-27 20:27:58,766 INFO L78 Accepts]: Start accepts. Automaton has 5795 states and 5816 transitions. Word has length 2314 [2024-11-27 20:27:58,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:27:58,769 INFO L471 AbstractCegarLoop]: Abstraction has 5795 states and 5816 transitions. [2024-11-27 20:27:58,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:27:58,770 INFO L276 IsEmpty]: Start isEmpty. Operand 5795 states and 5816 transitions. [2024-11-27 20:27:58,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2328 [2024-11-27 20:27:58,869 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:27:58,870 INFO L218 NwaCegarLoop]: trace histogram [570, 570, 570, 570, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2024-11-27 20:27:58,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 20:27:59,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:27:59,071 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-27 20:27:59,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:27:59,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1715860412, now seen corresponding path program 2 times [2024-11-27 20:27:59,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:27:59,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170444055] [2024-11-27 20:27:59,073 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:27:59,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:27:59,478 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:27:59,478 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:27:59,561 INFO L134 CoverageAnalysis]: Checked inductivity of 650433 backedges. 0 proven. 289596 refuted. 0 times theorem prover too weak. 360837 trivial. 0 not checked. [2024-11-27 20:27:59,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:27:59,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170444055] [2024-11-27 20:27:59,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170444055] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:27:59,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896982848] [2024-11-27 20:27:59,562 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:27:59,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:27:59,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:27:59,565 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:27:59,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 20:28:00,661 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:28:00,661 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:28:00,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:28:00,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:28:04,574 INFO L134 CoverageAnalysis]: Checked inductivity of 650433 backedges. 0 proven. 289596 refuted. 0 times theorem prover too weak. 360837 trivial. 0 not checked. [2024-11-27 20:28:04,574 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:28:08,553 INFO L134 CoverageAnalysis]: Checked inductivity of 650433 backedges. 0 proven. 289596 refuted. 0 times theorem prover too weak. 360837 trivial. 0 not checked. [2024-11-27 20:28:08,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896982848] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:28:08,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:28:08,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-27 20:28:08,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974281212] [2024-11-27 20:28:08,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:28:08,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:28:08,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:28:08,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:28:08,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:28:08,561 INFO L87 Difference]: Start difference. First operand 5795 states and 5816 transitions. Second operand has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:28:09,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:28:09,087 INFO L93 Difference]: Finished difference Result 5795 states and 5816 transitions. [2024-11-27 20:28:09,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:28:09,087 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2327 [2024-11-27 20:28:09,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:28:09,096 INFO L225 Difference]: With dead ends: 5795 [2024-11-27 20:28:09,096 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 20:28:09,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4657 GetRequests, 4651 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:28:09,101 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 66 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:28:09,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 38 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:28:09,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 20:28:09,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 20:28:09,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:28:09,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 20:28:09,107 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2327 [2024-11-27 20:28:09,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:28:09,108 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:28:09,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:28:09,108 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:28:09,109 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 20:28:09,112 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-11-27 20:28:09,113 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-11-27 20:28:09,113 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2024-11-27 20:28:09,113 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2024-11-27 20:28:09,113 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2024-11-27 20:28:09,113 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2024-11-27 20:28:09,114 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2024-11-27 20:28:09,114 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2024-11-27 20:28:09,114 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-11-27 20:28:09,114 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-11-27 20:28:09,114 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2024-11-27 20:28:09,114 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2024-11-27 20:28:09,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-11-27 20:28:09,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-11-27 20:28:09,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-11-27 20:28:09,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-11-27 20:28:09,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 20:28:09,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02bea7a3-b203-4e7f-bc90-8063e46d9e53/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 20:28:09,322 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:28:09,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 20:32:25,878 WARN L286 SmtUtils]: Spent 4.27m on a formula simplification. DAG size of input: 10165 DAG size of output: 10157 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-27 20:36:46,929 WARN L286 SmtUtils]: Spent 4.35m on a formula simplification. DAG size of input: 10165 DAG size of output: 10157 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)